Tobacco pipe



July 20, 1926.

H. H. DADSON TOBACCO PIPE Filed March 23 1925 F/G. E.

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Patented July 20, 1926.

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HILARY HENRY DADSON, OF LONDON, ENGLAND, ASSLGNR F ONE-HALF TC LEONARD SMITH, OF LONDON, ENGLAND.

TOBACCO 'Prien .Application led `March 23, 1925, Serial No.17,509, and in Great Britain November 13, 1954.

My British patent specification No. 205,381 describes a tobacco pipe comprising a tobacc retaining receptacle screwedwithin a secondary chamber in which is located a plain loose titting cup without grooves projections or partitions forming a relatively shallow receptacle for the nicotine, the edect of such an arrangement ybeing to cause the smoke from the bowl to be drawn into the secondary chamber below the bottom of the tobacco retaining receptacle and thereafter to .rise and pass over the edge of the aforesaid loose fitting cup and thence pass to the bore in the stem oi' the pipe, tor the purpose oi preventing moisture from the mouth of the smoker passing into the tobacco holding receptacle.

The present invention consists of certain modifications otl or improvements in or relating to the pipe described in my said British patent speciiication No. 205,361.

According to my present invention, a tobacco pipe ot the kind referred to has a disc or pad or body of absorbent material (which may be fiat or slightly cupped or ot any suitable shape) fitting loosely within the secondary chamber, with the disc pad or body and the chamber and the bore of the stem where it enters the chamber so formed in relation to one another' that the smoke passage from said chamber can not in any position become blocked by said disc pad or body.

The secondary chamber according to my present invention is preferably low and broad and has the central bottom portion formed fiat or oi" flattened form or curved to a radius different from that of the upwardly extending surrounding wall ot' saidv secondary chamber which wall is advantageously curved, and according to a further feature of my invention the bore of the stem where it enters said chamber is enlarged to form a recess or niche in the wall of said chamber extending upwards to or nearly to the bottom oi' the tobacco holding portion so as always to ensure a free passage for the smoke from the secondary chamber into the bore of the stem; thus for example should the disc be moved (for instance when the parts are unscrewed) to such a position that it tends to block the opening to the stem, the tobacco holding part when screwed fully home will contact with the edge ci' the disc and move it away to uncover the enlargement of the stem opening and ensure t passage tor the smoke.

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The loosely fitting disc or pad or body ,for use in the secondary chamber accor 1ing the lower part vB in which is the secondarychamber C to contain a loose iitting disc or pad or body D (shown cup-shaped in the drawings) ot' absorbent material,l for instance compressed paper.

It is preferable, though not essential, that the transverse division 'of the bowl be about midway down same or even below the middle, as illustrated, since the bowl is usually thickest at that part and the screw threads may be of fair depth without fear of breakage.

rlhe secondary chamber C is shallow and occupies but little space. A recess or niche E is provided where the bore F enters the chamber C and this recess extends upwards to the underside of the part A, so that no matter how the disc or body D is shaken about in the chamber C it cannot completely block the bore F.

The smoke passes from the tobacco holding receptacle A through a central hole G (or it may be a series of holes) and impinges directly on the disc or body D, which absorbs the nicotine as well as any moisture trom the mouth of the smoker the smoke then passing (over the rim or edge of the disc or body) to the stem F.

H is the usual mouthpiece.

The disc, pad or body of absorbent material may be either round or of other suitable shape and may either be flat or other than ilat for example same may be ot' cup or disc or saucer form; and may be of any suitable material of an absorbent character for example of paper, cardboard, carton, wood plan taken on F lUU.

pulp or paper pulp or equivalent moulded or otherwise 'formed into the desired shape.

This dise or pad or bodyv (such as D) whatever its shape or forni is of somewhat less diame'er if circular, or somewhat less .in size, than 'the diainel'er or the interior of the said secondary Chamber in which saine is used.

r"he exterior iorin of the bowl (or/and s'ein) of the pipe may be of anyv desired and suitable shape or pattern for example o the exterior shown in the accompanying drawiin:y or of the Well-known bull-dog pattern and eiher with straight or bent stem.

What I claim s:-

A tobacco pipe having a transversely divisible howl the upper part forming a tobacco-holding receptacle and the lower part a relaively shallowv seeondar)v Chamber adapted l'or receiving a pad of absorbent niaterial or' snialler dimensions than said secondary chamber, said seeondarj,v chamber haring a substantially vertical niche in its all orining 1die erniination ol the here of the sein Where it enters said secondarv chandler, said niche extending ironi the ooi' of said secondary chamber past the bore and upwardly towards the underside of the tobacco-holding receptacle.

HILARY HENRY DADSON. 

